Earth moving device



Dec. 8, 1931. R. L. HARRISON 1,835,649

EARTH MOVING DEVI CE Filed Aug. 28, 1950 Fizz l5 f/GZ. 0 22 m x 36 06 4"- o 24 I; 38 60 '0 r-"" "l .IIIH 14 il I W a0 6E OZ? Patented Dec. 8, 1931 RAYMOND L. HAnaIsomo-r ALBUQUERQU NEW MEXICO EARTH MovInG VDEVI'IGE Application filed 'August 28,1930. Serial No."478,433.

' My presentinvention relates to earth work'- ing apparatus and particularly to devices of the scraper type which are adapted to' be drawn across the surface of the ground for '5 the purpose. of shifting earth from one posirying bowl; and

tion to another.

This invention is closely related to the in-' vention set forth'in my co-pending application, Serial N o. 47 8,432, filed of even date, but differs from said co-pending application in providing new structural features.

It is one of the primaryobjects of my present invention to provide a new and improved hydraulically controlled mechanism for con trolling the relative shifting of the draft frame of a scraper device and a tractive means such as a tractor or other suitable apparatus. l

Another and more specific object of my present invention is to provide in combination with a draft frame of a device as above set forth, a hydraulic piston which is independently connected with means for shifting a bowl actuating device, and a separate shifter rod which is adapted to be directly coupled with a tractive mechanism such as a tractor.

The foregoing and other objects and advantages will be more apparent from the following detailed description when considered in connection with the accompanying drawings, wherein: Y

Figure 1 is a side elevational view of a device which is constructed inaccordance with Y the teachings of my invention;

Figure 2 is a similar side elevational View disclosing a shifted position of the earth car- Figure 3 is a plan View of the structure as'shown in Figure 2.

Referring now to the drawings, it will be seen that I have employed like numerals to designate similar parts throughout the various figures, and in Figurel I have shown an earth working apparatus whichincludes. a

draft frame 10, which pivotallysupports an earth receiving bowl or scraper 12. This scraper 12is provided with a relatively sharp earth receiving edge. 12, and is supported at each extremity upon-suitable stub shafts 14.

In order to effect the rearward or counterclockwise tilting of thebowl 12, I provide u an actuating mechanism which I have designated. generally by the numeral 16. This mechanism includes a shifter member or bar 18 which is provided with an arcuate slot 20. This slot 20 receives a" supporting pin 22 which is carried at the upper end of a vertical support or frame 24. The rearward extremity of the shifter 'bar 18 pivotally supports a latch member 26, and this'latch member is adapted to, engage a lug 28 mounted on the periphery of the bowl 12. A trip lever 30 which is operated by exerting a longitudinal pull on a flexible connector or cord 32 serves whenshifted' to the right of Figure 1' to permit the free counter-clockwise move ment of the latch member 26. A coilspring 34 continuously urges the latch member 26in a] clockwise direction. 1 t The forward extremity of the shifter member 18 is connected to theupper end of a lever 38 extending through an upright frame member 40. The lower extremity of the lever .36 makes a slotted connection with one ex- 44 of-a tractor (not shown). The connector rod'42 is formed in two sections, said sections 36, which lever is pivotally 'carriedby a-pin being connected by means of a suitable coupler 46, whichservesito render said connector rod extensible. v A second rod 48 is pivotally connectedat one extremity to the lever 36 at apoint intermediate the pin 38 and the lower extremity of said'lever. The oppositeextremityofthis rod 38 is connected to a piston 50 which is .reciprocable within a cylinder 52, which cylinder is mounted onthe upper sideof the draft framelO. One extremity ofthe cylinder 52 communicates with a tank I 54 through the agency of a suitable valve 56. The opposite extremity of the cylinder 52 communicates with said tank through the agency ofa pipe58. The valve 56 may be opened and closed by means of amember 60 a which-extends between said valve and aconvenientroperating position, as for. example, from a position adj acentithe' seat of thetractor (notshown). Ihe connector or piston rod 48 is also provided with an extensible coupler 62. A heavy duty spring 64: serves as a means for continuously urging the shifter member or bar 18 to the right of Figure 1, and this spring is interposed between the upper end of the lever 36 and the tank 54. A suitable turn buckle 66 is provided for varying the tension of the spring 64. Obviously said spring may be anchored at positions other thantha-t shown in the drawings, but for the purpose of one practical illustration I have shown the same as inter posed between the upper end; of the lever and the tank 54. c I I From the foregoing it will be apparent that when-the bowl 12 occupies its cutting posi tion as shown in Figure 1 and a pulling force is exerted upon-the connector rod 42 through the agency of the tractive means or tractor (not'shown), the cutting edge of said bowl will make a out within the surface of the ground, providingthat the valve 56 is closed. In other words, the fluid within the cylinder '52, which is positioned to the right of the piston 50, serves as a lock or abutment to prevent movement of said piston to the right in response to the pulling action exerted on the connecting rod L2. However, if the valve 56 is open and a'pulling force is exerted upon the connecting rod 42, the piston 50 will be free to move to the right within the cylinder 52, thereby causing the bowl actuator mechanism 16'to be operated. Inthis manner the actuator mechanism 16 serves to tilt thebowl .12 rearwardly, and if the valve 56 is closed at a predetermined interval, the bowl will be brought to rest at the position shown in Figure 2. However, if the valve is closed at a later interval, the bowl will be shifted to a stillfurther rearward position. The heavy duty spring 64 acts upon the lever 36 so as to swing said lever in a clockwise direction when the valve 56 is open and the tractor or tractive means is stopped. When the actuator member-18 has been urged forwardly 'in'response to the pull of the spring 64, thecbowl will be free toroll in a clockwise direction as viewed in Figures 1 :and 2 when a pulling force is exerted upon the frame 10. I

Having thusdescribed my invention, what I claim, as new and desire to secure by Let- 'ters Patent is:

1. In an earth working device adapted to be moved across the surface of the ground, atlltable earth receiving means, a draft "means for urg ng saidj earth receivlng means -across the surface of the ground, hydraulic "mechanism adapted for connection with a suitable tractive means, said hydraulic means includ ng'a p ston, a cylinder, a rod connected 7 "with said piston, and a second rod adapted to be" coupled with said tractive means, and meansfor actuating" said earthreceivlng means, said hydraulic mechanism being operable in response to said actuating means.

2. In an earth working device adapted to be moved across the surface of the ground, a tiltable earth receiving means, a draft means pivotally supporting said earth receiving means for urging said earth receiving means across the surfaceof the ground, hydraulic mechanism adapted for connection with a suitable tractive means, said hydraulic means including a piston, a cylinder, a rod connected with said piston, and a second rod adapted to be coupled with said tractive and means for actuating said earth receiving means, said hydraulic mechanism being operable in response to the movement of said actuating means. 7

3. In an earth working device adapted to be moved across the surface of the ground, a" tiltable earth receiving means, a dra frame for urging said earth receiving means across the surface ofv the ground, a hydraulic mechanism mounted on said draft frame, said mechanism including a substantially horizontally shiftable piston rod, a second substantially horizontal rod adapted to be connected with a suitable tractive means, and means for actuating said earth receiving means, said actuating means being operable in response to the actuation of said rods.

4. In an earth working device adapted to be movedacrossthe surface of the ground, a tiltable earth receiving means, a draft means for urging said earth receiving means across the surface of the ground, hydraulic mechanism adapted for connection with a suitable tractive means, said hydraulic means including a piston, a cylinder, a rod connected with said piston, and a second rod adapted to be coupled with said tractive'means, means for actuating said earth receiving means, said hydraulic mechanism being operable in response to the movement of said actuating means, and resilient means for urging said actuating means in a given direction.

5. In an earth working device adapted to be moved'across the surface of'the ground, a ,tiltable earth receiving means, .a draft means for urging said earth receiving means across the surface of the ground, hydraulic mechanism adapted for connection with a suitable tractive means, said hydraulic means including a piston, a cylinder, a rod connected with said piston, and a second rod adapted to be coupled with said tractive means, and means for actuating said earth carrying means including a pivoted member, and a shiftable actuator member, said pivoted member beingconnected with said hydraulic mechanism.

6. In an earth working device adapted to be moved across the surface of the ground, a tiltable earth receiving means, a draft means for urging said earth receiving'means across the surface of the-ground, hydraulic mechanism adapted for connection with a suitable tractive means, said hydraulic means including a piston, a cylinder, a rod connected with said piston, and a second rod adapted to be coupled with said tractive means, means for actuating said earth carrying means including a pivoted member, and a shiftable actuator member, said pivoted member being connected with said hydraulic mechanism, and resilient means for urging said pivoted actuating member in a given direction.

7. In an earth working device adapted to be moved across the surface of the ground, a tiltable earth receiving means, a draft means for urging said earth receiving means across the surface of the ground, hydraulic mechanism adapted for connection with a tractive means, said hydraulic means including a piston, a cylinder, an extensible rod connected with said piston, and a second extensible rod adapted to be coupled With said tractive means, and means for actuating said earth receiving means, said hydraulic mechanism being operable in response to the actuation of said actuating means.

8. In an earth working device adapted to be moved across the surface of the ground, a tiltable earth carrying means having an earth receiving edge, a draft frame mechanism for urging said earth receiving means across the surface of the ground, hydraulic mechanism adapted for connection with a suitable tractive means, said hydraulic mechanism including a cylinder mounted on the upper side of said draft frame, a piston in said cylinder and means for connecting said piston with said tractive means, and means for actuating said tiltable earth receiving means, said piston being shiftable in response to the actuation of said actuating means.

9. In an earth moving device adapted to be moved acrossthe surface of the ground, a draft frame, tiltable earth carrying means on said frame, actuating means engageable with the earth carrying means for tilting same, a hydraulic mechanism connected with said actuating means, said hydraulic mechanism being adapted for connection with a tractive means and shiftable in response to the force exerted by such tractive means, and

a cam for controlling the travel of the portion of the actuating means which engages said earth carrying means.

10. In an earth moving device adapted to be moved across the surface of the ground, a draft frame, tiltable earth carrying means on said frame, actuating means engageable with the earth carrying means for tilting same, a hydraulic mechanism connected with said actuating means, said hydraulic mechanism being adapted for connection with a tractive means and shiftable in response to the force exerted by such tractive means, and a cam having oppositely disposed cam surfaces for controlling thetravel of the por- RAYMOND HARRISON which engages 

